I recently bought a vision spinner 3.3-4.8v battery with a vivi nova tank and I am not getting the hit consistency that I require. Another poster recommended a smoktech cartotank to me to improve consistency. I ordered one, in addition to some 1.5 ohm replacement cartos. However, I understand these might pose me some problems with wear and tear etc.? Can someone confirm/deny this or add any helpful tips? Also, if the 1.5s are usable, what voltage would be optimal? Cheers